
Philips Semiconductors
Product data
SCC68692
Dual asynchronous receiver/transmitter (DUART)
2004 Mar 03
6
DC ELECTRICAL CHARACTERISTICS1, 2, 3
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
Min
Typ
Max
UNIT
VIL
Input LOW voltage
–
0.8
V
VIH6
Input HIGH voltage (except X1/CLK)
2.0
–
V
VIH7
Input HIGH voltage (except X1/CLK)
2.5
–
V
VIH
Input HIGH voltage (X1/CLK)
0.8VCC
–
V
VOL
Output LOW voltage
IOL = 2.4 mA
–
0.4
V
VOH4
Output HIGH voltage (except OD outputs)
IOH = –400 A
VCC – 0.5
–
V
IIX1PD
X1/CLK input current – power-down
VIN = 0 V to VCC
–10
–
+10
A
IILX1
X1/CLK input LOW current – operating
VIN = 0 V
–75
–
0
A
IIHX1
X1/CLK input HIGH current – operating
VIN = VCC
0
–
75
A
IOHX2
X2 output HIGH current – operating
VOUT = VCC, X1 = 0
0
–
+75
A
IOHX2S
X2 output HIGH short circuit current – operating
VOUT = 0 V, X1 = 0
–10
–
–1
mA
IOLX2
X2 output LOW current – operating
VOUT = 0 V, X1 = VCC
–75
–
0
A
IOLX2S
X2 output LOW short circuit current – operating
and power-down
VOUT = VCC, X1 = VCC
1
–
10
mA
II
Input leakage current:
All except input port pins
Input port pins
VIN = 0 V to VCC
–10
–20
–
+10
A
IOZH
Output off current HIGH, 3-State data bus
VIN = VCC
–
10
A
IOZL
Output off current LOW, 3-State data bus
VIN = 0 V
–10
–
A
IODL
Open-drain output LOW current in off State
VIN = 0 V
–10
–
10
A
IODH
Open-drain output HIGH current in off State
VIN = VCC
–
A
Power supply current5
Operating mode
TTL input levels
–
10
mA
ICC
CMOS input levels
–
10
mA
Power down mode8
TTL input levels
–
3.0
mA
CMOS input levels
–
2.0
mA
NOTES:
1. Parameters are valid over specified temperature range.
2. All voltage measurements are referenced to ground (GND). For testing, all inputs swing between 0.4 V and 2.4 V with a transition time of
5 ns maximum. For X1/CLK this swing is between 0.4 V and 4.4 V. All time measurements are referenced at input voltages of 0.8 V and
2.0 V and output voltages of 0.8 V and 2.0 V, as appropriate.
3. Typical values are at +25
°C, typical supply voltages, and typical processing parameters.
4. Test conditions for outputs: CL = 150 pF, except interrupt outputs. Test condition for interrupt outputs: CL = 50 pF, RL = 2.7 k to VCC.
5. All outputs are disconnected. Inputs are switching between TTL levels of 2.4 V and 0.4 V or CMOS levels of VCC – 0.2 V and VSS + 0.2 V.
6. Tamb ≥ 0 °C
7. Tamb < 0 °C
8. See UART application note for power-down currents less than 5
A.